s390/mm: fix vmemmap size calculation

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The size of the vmemmap must be a multiple of PAGES_PER_SECTION, since the
common code always initializes the vmemmap in such pieces.
So we must round up in order to not have a too small vmemmap.

Fixes an IPL crash on 31 bit with more than 1920MB.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Heiko Carstens 2013-02-28 11:16:26 +01:00 • committed by Martin Schwidefsky

parent 6551fbdfd8

commit a7bb1ae749

1 changed files with 2 additions and 0 deletions

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arch/s390/kernel/setup.c

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